Binder attachment for sewing-machines



J. F. BERGEN AND J. MARCUS.

BINDER ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED MAR. 4, 1920.

1,397,858, Patented Nov, 22, 1921.

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nnmn ATTACHIENT FOB SEWING-IACHINR.

Specification of Letters Patent.

Patented Nov. 22, 1921.

Application med larch 4, 1980. lerial Io. 383,259.

To all whom it may concern:

Be it known that we, JOHN F. BERGEN, a citizen of the Republic ofLithuania,,'residing in Brookl n, in the county of-Kings and State ofNzw York, and JACOB Mmoos, a citizen of the Re ublic of Poland, residingin Brookl n, in t e county of Kings an State of ew York, have inventedcertain new and useful Improvements in Binder Attachments forSewing-Machines, of which the following is a s cification. Thisinvention re ates to improvements in binders of the type usuallydesignated as combination right angle binders, by means of which thestrip of material is folded and fed in a direction atright angles to itsini- An object of the invention is the provision of an improved binderof the character described, simple in construction, inexpensive tomanufacture and effective and durable in use to accomplish the purposesset forth.

Other objects of the invention are to simplify the construction of thebinder and to provide 'a removable guide-tongue for facilitating thestarting of the binding'strip, and simplifying the construction of thedevice and making more economical its manufacture.

Other objects of the invention will appear as the description roceeds,and while herein minute details of the invention are disclosed, theinvention is not limited to these, since many and various changes may bemade without departing from the scope of the invention as claimed.

In the accompanying drawings showing by way of example one of manypossible embodiments, of the invention,

Figure l is a'front elevation of the binder.

Fig. 2 is a bottom view;

Fig. 3 is an end view;

Fig. 4 shows a section taken on the line 4-4 of Fig. 2, parts beingomitted;

Fi 5 is a perspective view of the tongue, the ront face thereof beingshown uppermost;

Fig. 6 is a perspective view showin the rear face thereof uppermost Figiis a perspective view of the main folding plate of the binder and itssupport,

tiall flat rearwardly tial' direction of feed, and inwhich the raw ofthe tongue the open front face being shown uppermost, the guide-tonguebeing removed;

Fig. 8 shows a section on the line 8-8 of F 1g. 1 and Fig. 9 is afragmental pers ectilvei' view of the delivery end of the fol ing p a e.

Abase plate 10 formed with an upright bracket plate 11 on its frontedge. A folding late 12 is'secured on the forward face of said bracketplate 11 approximately in they plane thereof and formed at its receivinend with a substaneveled receiving face (shown in bottom plan in 1 Fig.2) is mounted on the machine bed and 14 Fig. 7) substantially the widthof the bindin strip 15, (Figs. 1 and 2). The front face ,0 saidfoldingplate is formed with an axial rib 16, highest and narrowest and deeplynotched, as at 17, (Fig. 9) at its del1very end, and gradually merginginto said receiving face 14. Said late 12,-. is also formed withconverging sid e flanges 18 extendlng from end to end of the side edgesof the folding plate and cooperating with said r1b to form grooves ortroughs 20 (Fig. 4). Sa1d plate 12 is provided near its ends withinwardly and rearwardly folded deliveryend lips 21 (Fig. 7) andreceiving-end lips 22 extending to near the ribs 16,;the receiving-endlips 22 bein bent to be nested in and slightl spaced rom said troughs20.

Wire-end loops 25- (Figs. 7 and 9) are provided on the delivery end ofsaid flanges thereby to form inwardly projecting edges for the deliveryend of the flan es.

A friction uide-tongue 27 ig. 5) frontwardly beve ed at the receivingend as at 28 and deeply notched as at 29 at the delivery end is disposedwithin the folding plate (Fig. 1) conforming approximately to the shapeof said rib 16 and contacted by and held near said rib by said lips 21and 22. Said tongue is axially slotted to provide a start-feed slot 30for starting the feeding of the binding strip.

Said tongue is rovided at its receiving end with outwar ly, backwardlyand inwardly curved side wings 32 (Figs. 5 and 6) received between saidflanges 18 and under the receiving-end lips 22 to form with said flatface 14 an approximately rectangular vertical throat 33 (Fig. 8) merginginto an approximately W-shaped passage at said receiving-end lips 22.

Before starting the feeding of the strip, the tongue 27 is removed bydrawing it out 55 in operative holding position by material from underthe lips 21 and 22. Ihe end of the strip is then placed in the foldingplate, and the tongue replaced. A pin or the like may be thrust throughthe slot 30 to force the strip along until it is in position. to feedproperly.

In the operation, the binding strip 15, with I its .raw edges, is passedin the direction of the ing up the middle of the strip, while the partabout half way between the middle arrow of Fig. 1', into the throat 33at the delivery end thereof, whereupon the strip is convexed frontwardlcentrally )of its width by reason offthe rontwardly curved rib 16. Atthe same time the edges of thestrip are turned up by the flanges 18 asthe latter converge. ,As the stip further'passes into the folding plate,the strip receives a W-shaped cross section, the raw edges of the stripcontacting the lips 21,the rib 16 holdthe top and bottom of the work 35(Fig. 2)

which is fed across the bed plate of the machine in the direction of thearrow of Eig. 2, in the usual manner, the usual feeding 85 mechanism ofthe machine drawing the work,

together with the facing or binding strip 15 under the presser o manner.p

The binding strip '15 is, during its movement in one direction, foldedwith its raw edges turned over away from each other, but thatsubsequently the bindin strip is turned outside-in to bring these foled-in edges opposed to each other, one above the. other, with the stripin position to be folded over the edge'of the work 35 with one sidethereof on top of the work and the other underneath thereof so that thenecessity of first folding the edges of the strip before feeding thesame to the folder is done away with.

We claim:

1. In combination, a folding plate; and a removable guide member free ofattachment to other structure and constructed and positioned to beloosely held on said plate passing between the plate and guide member.

2. In combination, a folding plate; and a removable guide member free ofattachment to other structure and constructed and positioned to beloosely held on said plate and yieldably pressed in the direction of thefeed in holding position by material passing between said plate andguide member.

3. In combination, a pair of associated 0t in the usual guiding partsone of which is. free of attachment to other structure and freelymovable toward its receiving end and constructed and -positioned to beyieldably held against such movement by the action of material operatedupon thereby. I

4. In combination, a folding plate; a removable guide'm ember thereon inpartial spaced relation thereto and movable toward the receiving end ofsaid plate; said guide member being free of attachment with otherstructure. i

5. In combination,a fixed holding plate; a removable guide memberthereon in partial spaced relation thereto and' freely movable towardthe receiving end of said plate and constructed and positioned-to beieldably held against such movement by t e action of material operatedupon thereby; said guide member beingfree of attachment with otherstructure. 7

' 6. In combination, afixed folding plate; a removable ide member heldthereon in partial spaced relation thereto and against up and down andlateral movement thereon and freely movable toward the receiving end ofsaid plate and constructedand positioned to be yieldably held againstsuch movement by the action-of material operated upon thereby; saidguide member being free of attachment with other structure.

7. In combination, a folding plate formedwith a receiving front-face atthe receiving end, an axial rib merging into said face and side flangescooperatin with said rib to form troughs; and a guide tongue conformingapproximately to the shape of said rib and held near said rib, andprovided with outwardly and backwardly curved wings between said sideflanges.

8. In combination, a folding plate formed with a receiving front-face atthe receiving end, an axial rib merging into said face, and side flangescooperating with said rib to form troughs; and a guide tongue conformingapproximately to the shape of said rib and heldnear said rib, andprovided with outwardly and backwardl curved wings between said sideflanges orming with said receiving face a wide throat merging into apassage of approximately QW-shaped crosssection. v p

9. In combination, a folding plate formed with a flat receiving face, anaxial rib merg-' ing into said face, and side flanges provided withinwardly folded lips'extending to near the rib; and a guide-tongueconforming to slightly spacedfrom said groove; and a and inwardly curvedside WlIlgS at its re- ,and provided with outwardl backward y ceivingend adapted to be received between .forming grooves therewith andtending to near the ribs,

said flanges and under the receiving-end lips.

11. In combination, a folding late formed with a receiving face, an axisrib merging into said face, and side flanges rming grooves and providedwith mardly and backwardl folded delivery end lips and receiving-enlips, the receivin 7 end lips being nested in and slightly spaced fromsaid grooves; and a guidertongue conforming to the shape of the rib andheld near thereto by said lips and provided with side wings at itsreceivin end ada ted to be received between said auges a under thereceiving-end li s. 4

12. In combinatlon, a folding plate formed with a flat receiving face;an axial rib merging into said face, and side flan s rovi ed withinwardly and backwardly fo ded delive end lips and receiving-end lipsexthe receiving-end lips being nested in and slightly spaced from saidgrooves; and a guide tongue conforming to the shape of said rib and heldnear thereto by said lips and provided with outwardly, backwardly andinwardly curved side wings at its receivin end adapted to be receivedbetween said anges and under the receiving-end lips to form with saidflat face an approximately rectangular vertical throat merging into anapproximately W-sha ed passage at said receiving-end li s.

13. In combination, a foldin plate with a flat receiving front-face at te receiving end, an axial rib deeply notched at its delivery end andmerging into said face and side flanges cooperating with said -r1b toform troughs; and a guide-tongue conforming approximately to the shapeof said rib and held near said rib, and provided with outwardly andbackwardly curved win between said side flanges forming with sa1d flatface a wide throat merging into a passage of approximately W-shapedcrosssection.

14. In combination, a folding plate formed with a substantially flatreceiving front-face at the receiving 'end, an axial rib, highest andnarrowest and deeply notched at its delivery end, and merging into saidreceiving face, and side flanges cooperating with sa1d rib to form apair of tapering converging troughs increasin in depth and ecreasing inwidth towar the idelivery end; holding lips on said flange and extendingto near the rib and nested in and slightly spaced from the walls andfloor of said troughs; and a guide-tongue conforming approximately tothe shape of said rib and held near said rib having its side edges deepin said troughs, ;the receiving end of thetongue being provided withoutwardly, wardly curved win side flanges and undb r the lips to form,with said flat face, an approximately rectangular vertical throatmerging into a passage of approximately W-s aped cross-section at saidli s.

15. n combination, an upright bracket plate, a folding plate secured onthe front of said bracket plate and formed with a substantially flatreceiving front-face, with an axial rib, highest and narrowest anddeeply notched at its delivery end, and gradually merging into saidreceivin face, and with side flanges cooperating ith said' rib to form apair of taperin converging troughs increasing in depth an decreas inwidth toward the delivery end-of the fol ing plate; delivery-end li sand receiving-end lips on said flange an extending to, near the rib, thereceiving-end lips being nested in and slightly spaced from saidtroughs; and a guide-tongue conforming approximately to the shape ofsaid rib and adapted to be held near said rib by said lips and havingits side edges deep in said troughs the re ceiving end of the tonguebein provided with orwardly, backwardly an mwardly curved wings receivedbetween said side flangesand under the receiving-end lips to form, withsaid flat face, an approximately rectangular vertical throat-merginginto a passage of approximately W-shaped crosssection at saidreceiving-end lips.

16. In combination, an upright bracket plate, a folding plate secured onthe front of said bracketplate and formed with a substantially flatreceiving front face, with an axial rib, highest and narrowest anddeeply notched at its delivferyv end, and} gradually merging into saidreceiving face, and with side flanges cooperating with said rib to formrooves and extendin from end to end of t e folding plate an providednear its end with inwardly and rearwardly folded delivery-end lips andreceiving-end lips extending to near the rib, the receivingend lipsbeing nested in and slightly spaced from said grooves; and a frictionguidetongue deeply notched at the delivery end and conformingapproximatel to the shape of said rib and adapted to be eld near saidrib by said lips and provided with forwardly, backwardly and inwardlycurved wings at its receiving endcadapted to be received between saidside flanges and under the receiving-end li s to form, with said flatface, a vertical t roat.

17. In combination, an upright bracket plate; a folding plate secured onthe front of said bracket plate and formed with a substantially flatreceiving front face, with backwardly and inreceived between said anaxial rib, highest and narrowest and deeply notched at its delivery end,and gradually merging intoisaid receiving ace, and with side flangescooperating with said rib to form rooves and extending from end to endof t e folding late and provided near its ends with inwar ly andrearwardly folded delivery-endilips and receiving-end lips extending tonear the rib, the receivingend lips being nested in andslightly spacedfrom said grooves; wire-end loops provided on the delivery end of said.side flanges and spaced nearer together than said flanges thereby toform inwardly projecting edges; and a friction guide-tongue deeplynotched at the delivery end and conforming approximately to the shape ofsaid rib and adapted to be held near said rib by said lips and providedwith forwardly, backwardly and inwardly curved wings at itsreceiving-end adapted to be received. between said side flanges andunder the receiving-end lips to form, with-said flat face, a verticalthroat.

18, In combination, a folding plate, the

front face thereof formed with a receiving face at the receiving end, anaxial 'riib,

deeply notched at its delivery end, and.

gradually merging into said receiving face,

and with side flanges cooperating with said rib to form grooves andextendin from end to end of the side edges of thef0 ding plate andprovided near its ends with inwardly folded 1i s extending to near therib; and a remova 1e friction guidestongue conform ing ap roximately tothe shape of said rib and a apted to be contacted by and held near saidrib by said lips.

19. In combination, an upright bracket plate; a folding plate, the frontface therei ing to near the rib; and a removable fric tion' guide-tongueconforming approximately to the shape of said rib and adapted to becontacted by and held near said rib by said lips.

, JOHN F. BERGEN. JACOB MARCUS. Witnesses; I

' WALTER L. BAKELAR, ACHILLES Romano.

